{"id":971,"date":"2025-03-07T22:09:43","date_gmt":"2025-03-07T22:09:43","guid":{"rendered":"https:\/\/www.diecastingschina.com\/?page_id=971"},"modified":"2026-03-29T03:18:37","modified_gmt":"2026-03-29T03:18:37","slug":"tlakove-liti-pro-automobilovy-prumysl","status":"publish","type":"page","link":"https:\/\/www.diecastingschina.com\/cs\/tlakove-liti-pro-automobilovy-prumysl\/","title":{"rendered":"Tlakov\u00e9 lit\u00ed pro automobilov\u00fd pr\u016fmysl"},"content":{"rendered":"
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Tlakov\u00e9 lit\u00ed pro automobilov\u00fd pr\u016fmysl<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"automobilov\u00e9\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"EV\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"automobilov\u00e9\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Tlakov\u00e9 lit\u00ed hlin\u00edku v automobilov\u00e9m pr\u016fmyslu<\/h2>\n

<\/p>\n

Tlakov\u00e9 lit\u00ed pro automobilov\u00fd pr\u016fmysl<\/strong> V\u00fdrobky, kter\u00e9 se pou\u017e\u00edvaj\u00ed v automobilov\u00e9m pr\u016fmyslu, kter\u00fd v posledn\u00edch desetilet\u00edch pro\u0161el n\u011bkolika zm\u011bnami, v\u010detn\u011b v\u00fdkonnosti, \u00fa\u010dinnosti a udr\u017eitelnosti. Kl\u00ed\u010dov\u00e9 hodnoty, kter\u00e9 jsou hnac\u00ed silou tohoto podnik\u00e1n\u00ed. Tlakov\u00e9 lit\u00ed pro automobilov\u00fd pr\u016fmysl<\/strong> je jednou z kl\u00ed\u010dov\u00fdch technologi\u00ed v seznamu mo\u017en\u00fdch v\u00fdrobn\u00edch proces\u016f, kter\u00e9 p\u0159inesly takovou zm\u011bnu. Umo\u017e\u0148uje v\u00fdrobc\u016fm motorov\u00fdch vozidel vyr\u00e1b\u011bt slo\u017eit\u00e9, lehk\u00e9 a vysoce zpevn\u011bn\u00e9 d\u00edly s velmi p\u0159esn\u00fdm a spolehliv\u00fdm.<\/p>\n

<\/p>\n

Tlakov\u00e9 lit\u00ed je nyn\u00ed nezbytn\u00e9 pro v\u00fdrobu blok\u016f motor\u016f a sk\u0159\u00edn\u00ed p\u0159evodovek, konstruk\u010dn\u00edch d\u00edl\u016f a kryt\u016f elektromobil\u016f. Toto je podrobn\u00fd pr\u016fvodce v\u0161\u00edm o tlakov\u00e9 lit\u00ed hlin\u00edku pro automobilov\u00fd pr\u016fmysl<\/a>, jak to d\u011bl\u00e1me a jak\u00e9 materi\u00e1ly pou\u017e\u00edv\u00e1me, klady a mo\u017enosti budouc\u00edch dodavatel\u016f tlakov\u00e9ho lit\u00ed na to, jak budou tato vozidla vypadat z\u00edtra.<\/p>\n

<\/p>\n

Co je tlakov\u00e9 lit\u00ed pro automobilov\u00fd pr\u016fmysl?<\/strong><\/h2>\n

<\/p>\n

Tlakov\u00e9 lit\u00ed pro automobilov\u00fd pr\u016fmysl<\/a><\/strong> je technologie odl\u00e9v\u00e1n\u00ed kov\u016f, p\u0159i n\u00ed\u017e se roztaven\u00e9 kovy pod vysok\u00fdm tlakem, obvykle hlin\u00edk, ho\u0159\u010d\u00edk nebo zinek, vtla\u010duj\u00ed do opakovan\u011b pou\u017eiteln\u00e9 ocelov\u00e9 formy, tzv. kokily. Po zmra\u017een\u00ed se ztuhl\u00e1 \u010d\u00e1st vysune a vy\u010dist\u00ed a zu\u0161lecht\u00ed tak, aby odpov\u00eddala po\u017eadovan\u00fdm specifikac\u00edm.<\/p>\n

<\/p>\n

Pou\u017e\u00edv\u00e1 se k v\u00fdrob\u011b tis\u00edc\u016f (nebo dokonce milion\u016f) stejn\u00fdch automobilov\u00fdch d\u00edl\u016f s vysokou p\u0159esnost\u00ed, p\u0159\u00edsn\u00fdmi tolerancemi a vysokou kvalitou povrchu. D\u00edky sv\u00e9 efektivit\u011b a hospod\u00e1rnosti je ide\u00e1ln\u00ed volbou p\u0159i hromadn\u00e9 v\u00fdrob\u011b lehk\u00fdch d\u00edl\u016f v automobilov\u00e9m pr\u016fmyslu.<\/p>\n

<\/p>\n

Pro\u010d je tlakov\u00e9 lit\u00ed nezbytnost\u00ed ve v\u00fdrob\u011b automobil\u016f<\/strong><\/h2>\n

<\/p>\n

Tlakov\u00e9 lit\u00ed je d\u016fle\u017eitou sou\u010d\u00e1st\u00ed automobilov\u00e9ho pr\u016fmyslu, proto\u017ee pom\u00e1h\u00e1 dos\u00e1hnout n\u00e1sleduj\u00edc\u00edch hlavn\u00edch c\u00edl\u016f, kter\u00e9 p\u0159isp\u00edvaj\u00ed k v\u00fdkonu, \u00fa\u010dinnosti a kvalit\u011b vozidla:<\/p>\n

<\/p>\n

1. Lehk\u00e1 konstrukce<\/strong><\/h3>\n

<\/p>\n

Jedn\u00e1 se o p\u0159\u00edm\u00fd zp\u016fsob sn\u00ed\u017een\u00ed hmotnosti vozidla, co\u017e vede k vy\u0161\u0161\u00ed spot\u0159eb\u011b paliva a sn\u00ed\u017een\u00ed emis\u00ed. Hlin\u00edkov\u00e9 tlakov\u00e9 lit\u00ed nahrazuje t\u011b\u017ek\u00e9 ocelov\u00e9 komponenty lehk\u00fdmi, ale pevn\u00fdmi sou\u010d\u00e1stmi, a pom\u00e1h\u00e1 tak v\u00fdrobc\u016fm automobil\u016f dodr\u017eovat glob\u00e1ln\u00ed normy udr\u017eitelnosti a emis\u00ed.<\/p>\n

<\/p>\n

2. Slo\u017eit\u00e9 tvary<\/strong><\/h3>\n

<\/p>\n

Modern\u00ed modely automobil\u016f vy\u017eaduj\u00ed komplikovan\u00e9 obrysy a stla\u010den\u00e9 prvky. Tlakov\u00e9 lit\u00ed vytv\u00e1\u0159\u00ed slo\u017eit\u00e9 geometrie v jednom procesu a sni\u017euje \u00farove\u0148 mont\u00e1\u017ee a struktur\u00e1ln\u00ed integrity v\u0161ech d\u00edl\u016f.<\/p>\n

<\/p>\n

3. Vysok\u00e1 rozm\u011brov\u00e1 p\u0159esnost<\/strong><\/h3>\n

<\/p>\n

To je vlastnost, u kter\u00e9 se vy\u017eaduje, aby automobilov\u00e9 d\u00edly odpov\u00eddaly toleranc\u00edm, aby spr\u00e1vn\u011b sed\u011bly a fungovaly. Tlakov\u00e9 lit\u00ed zaru\u010duje vysokou p\u0159esnost p\u0159i velkos\u00e9riov\u00e9 v\u00fdrob\u011b, d\u00edky \u010demu\u017e je m\u00e9n\u011b variabiln\u00ed a odpad\u00e1 sekund\u00e1rn\u00ed zpracov\u00e1n\u00ed.<\/p>\n

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4. Vynikaj\u00edc\u00ed povrchov\u00e1 \u00faprava<\/strong><\/h3>\n

<\/p>\n

Komponenty odl\u00e9van\u00e9 pod tlakem maj\u00ed ze sv\u00e9 podstaty hladk\u00fd povrch, tak\u017ee se omezuje n\u00e1sledn\u00e9 zpracov\u00e1n\u00ed, co\u017e zvy\u0161uje estetiku a v\u00fdkon. Lze je tak\u00e9 snadno nat\u00edrat, lakovat a chr\u00e1nit proti korozi.<\/p>\n

<\/p>\n

5. N\u00e1kladov\u011b efektivn\u00ed hromadn\u00e1 v\u00fdroba<\/strong><\/h3>\n

<\/p>\n

T\u00edmto postupem lze vyrobit mnoho kus\u016f v kr\u00e1tk\u00e9m \u010dase a ka\u017ed\u00fd kus m\u00e1 stejnou kvalitu, a proto pat\u0159\u00ed k nejlevn\u011bj\u0161\u00edm zp\u016fsob\u016fm velkos\u00e9riov\u00e9 v\u00fdroby automobil\u016f. Tento proces tak\u00e9 vede k v\u00fdrazn\u00e9mu sn\u00ed\u017een\u00ed materi\u00e1lov\u00e9ho odpadu, co\u017e rovn\u011b\u017e sni\u017euje celkov\u00e9 n\u00e1klady na v\u00fdrobu, ani\u017e by do\u0161lo k naru\u0161en\u00ed kvality.<\/p>\n

<\/p>\n

\"Tlakov\u00e9<\/figure>\n

<\/p>\n

Proces tlakov\u00e9ho lit\u00ed pro automobilov\u00fd pr\u016fmysl: Krok za krokem<\/strong><\/h2>\n

<\/p>\n

N\u00e1sleduj\u00ed r\u016fzn\u00e9 kroky procesu odl\u00e9v\u00e1n\u00ed automobil\u016f;<\/p>\n

<\/p>\n

1. Konstrukce formy pro tlakov\u00e9 lit\u00ed<\/strong><\/h3>\n

<\/p>\n

Za\u010d\u00edn\u00e1 to n\u00e1vrhem automobilov\u00e9 formy pro tlakov\u00e9 lit\u00ed<\/strong>, co\u017e je ocelov\u00e1 forma, kter\u00e1 se pou\u017e\u00edv\u00e1 k p\u0159esn\u00e9mu z\u00edsk\u00e1n\u00ed tvaru roztaven\u00e9ho kovu. Formy jsou vyrobeny tak, aby byly odoln\u00e9 a sv\u011b\u017e\u00ed, v mnoha p\u0159\u00edpadech jsou vytvo\u0159eny pomoc\u00ed \u0161pi\u010dkov\u00e9ho za\u0159\u00edzen\u00ed CAD\/CAM, aby co nejl\u00e9pe slou\u017eily sv\u00e9mu \u00fa\u010delu.<\/p>\n

<\/p>\n

Formy se skl\u00e1daj\u00ed ze dvou polovin, pevn\u00e9 (kryc\u00ed matrice) a pohybliv\u00e9 (vyhazovac\u00ed matrice), kter\u00e9 spole\u010dn\u011b ur\u010duj\u00ed geometrii kone\u010dn\u00e9ho d\u00edlu. Jedn\u00e1 se o d\u016fle\u017eit\u00fd krok, proto\u017ee efektivn\u00ed konstrukce formy m\u00e1 p\u0159\u00edm\u00fd vliv na kvalitu v\u00fdrobku a efektivitu v\u00fdroby.<\/p>\n

<\/p>\n

\"Hlin\u00edkov\u00e9<\/figure>\n

<\/p>\n

2. Taven\u00ed kovu<\/strong><\/h3>\n

<\/p>\n

P\u0159i tlakov\u00e9m lit\u00ed hlin\u00edku pro automobilov\u00fd pr\u016fmysl se hlin\u00edkov\u00e9 ingoty tav\u00ed v peci, kter\u00e1 s vysokou \u00fa\u010dinnost\u00ed udr\u017euje n\u00edzkou teplotu, je\u017e je pe\u010dliv\u011b regulov\u00e1na, aby byla zaru\u010dena tekutost a \u010distota. P\u0159ed vst\u0159ikov\u00e1n\u00edm jsou odstran\u011bny v\u0161echny vady, aby se p\u0159ede\u0161lo vad\u00e1m hotov\u00e9ho odlitku.<\/p>\n

<\/p>\n

Je tak\u00e9 d\u016fle\u017eit\u00e9, aby se b\u011bhem taven\u00ed dbalo na varov\u00e1n\u00ed, proto\u017ee jak\u00e1koli nepatrn\u00e1 zm\u011bna teploty m\u016f\u017ee ohrozit pevnost, hustotu a celkovou povrchovou \u00fapravu d\u00edlu.<\/p>\n

<\/p>\n

\"Odl\u00e9v\u00e1n\u00ed<\/figure>\n

<\/p>\n

3. Vst\u0159ikov\u00e1n\u00ed roztaven\u00e9ho kovu<\/strong><\/h3>\n

<\/p>\n

Dutina matrice je natlakov\u00e1na na extr\u00e9mn\u011b vysok\u00fd tlak, kter\u00fd se obvykle pohybuje mezi 1 500 a 25 000 psi, a roztaven\u00fd hlin\u00edk je pod t\u00edmto tlakem vst\u0159ikov\u00e1n pomoc\u00ed p\u00edstov\u00e9ho mechanismu. Tento tlak je neuv\u011b\u0159iteln\u00fd, proto\u017ee zaji\u0161\u0165uje, \u017ee kov vypln\u00ed ka\u017edou jednotlivou \u010d\u00e1st dutiny formy, ne\u017e za\u010dne chladnout.<\/p>\n

<\/p>\n

Tento proces prob\u00edh\u00e1 v milisekund\u00e1ch, a proto umo\u017e\u0148uje v\u00fdrobc\u016fm vytv\u00e1\u0159et mnohostrann\u00e9 a detailn\u00ed automobilov\u00e9 komponenty odl\u00e9van\u00e9 pod tlakem s extr\u00e9mn\u00ed p\u0159esnost\u00ed a men\u0161\u00ed p\u00f3rovitost\u00ed.<\/p>\n

<\/p>\n

\"formy<\/figure>\n

<\/p>\n

4. Chlazen\u00ed a tuhnut\u00ed<\/strong><\/h3>\n

<\/p>\n

P\u0159i vst\u0159ikov\u00e1n\u00ed roztaven\u00fd kov rychle tuhne ve form\u011b pro tlakov\u00e9 lit\u00ed a n\u00e1sledn\u011b tvrdne. K \u0159\u00edzen\u00ed rychlosti chlazen\u00ed se pou\u017e\u00edvaj\u00ed vodn\u00ed kan\u00e1ly nebo chladic\u00ed syst\u00e9my na b\u00e1zi oleje, aby bylo dosa\u017eeno rovnom\u011brn\u00e9ho tuhnut\u00ed.<\/p>\n

<\/p>\n

Vhodn\u00e9 chlazen\u00ed v\u00fdrobku m\u016f\u017ee krom\u011b minimalizace vnit\u0159n\u00edch pnut\u00ed zlep\u0161it mechanickou pevnost a vytvo\u0159it spolehliv\u00e9 a odoln\u00e9 automobilov\u00e9 d\u00edly.<\/p>\n

<\/p>\n

\"Litina\"<\/figure>\n

<\/p>\n

5. Vyhazov\u00e1n\u00ed<\/strong><\/h3>\n

<\/p>\n

Po ztuhnut\u00ed se ob\u011b poloviny formy otev\u0159ou a ztuhl\u00fd d\u00edl se vysune pomoc\u00ed automatick\u00fdch vyhazovac\u00edch kol\u00edk\u016f. Tuto akci je t\u0159eba dob\u0159e na\u010dasovat, jinak dojde ke zni\u010den\u00ed nebo deformaci \u010derstv\u011b odlit\u00e9ho d\u00edlu.<\/p>\n

<\/p>\n

Automatizovan\u00e9 vyhazovac\u00ed syst\u00e9my pom\u00e1haj\u00ed udr\u017eovat dobrou konzistenci cykl\u016f a p\u0159i manipulaci se syst\u00e9mem je zapot\u0159eb\u00ed m\u00e9n\u011b \u010dasu, tak\u017ee je mo\u017en\u00e9 cel\u00fd automatizovan\u00fd proces lit\u00ed pod tlakem prov\u00e1d\u011bt rychleji a efektivn\u011bji.<\/p>\n

<\/p>\n

6. O\u0159ez\u00e1v\u00e1n\u00ed a dokon\u010dov\u00e1n\u00ed<\/strong><\/h3>\n

<\/p>\n

Ve\u0161ker\u00fd p\u0159ebyte\u010dn\u00fd kov ve form\u011b vtok\u016f, pod\u00e9ln\u00edk\u016f nebo ot\u0159ep\u016f se od\u0159ez\u00e1v\u00e1 pomoc\u00ed mechanick\u00fdch nebo automatick\u00fdch \u0159ezac\u00edch syst\u00e9m\u016f. V z\u00e1vislosti na po\u017eadovan\u00e9m v\u00fdsledku mohou d\u00edly po o\u0159ez\u00e1n\u00ed proj\u00edt n\u011bkolika \u010dinnostmi, jako je obr\u00e1b\u011bn\u00ed, le\u0161t\u011bn\u00ed, lakov\u00e1n\u00ed nebo lakov\u00e1n\u00ed, aby z\u00edskaly kone\u010dn\u00fd po\u017eadovan\u00fd vzhled.<\/p>\n

<\/p>\n

Tento posledn\u00ed krok zlep\u0161uje vzhled i funk\u010dnost sou\u010d\u00e1sti tak, aby odpov\u00eddala vysok\u00fdm standard\u016fm, kter\u00e9 by m\u011bly b\u00fdt spln\u011bny p\u0159i v\u00fdrob\u011b v sou\u010dasn\u00e9m automobilov\u00e9m pr\u016fmyslu.<\/p>\n

<\/p>\n

Suroviny pro tlakov\u00e9 lit\u00ed v automobilov\u00e9m pr\u016fmyslu.<\/strong><\/h2>\n

<\/p>\n

A\u010dkoli existuje n\u011bkolik kov\u016f, kter\u00e9 lze pou\u017e\u00edt pro tlakov\u00e9 lit\u00ed, v\u00fdb\u011br z\u00e1vis\u00ed na pevnosti, hmotnosti a n\u00e1kladech. N\u00ed\u017ee uveden\u00fd p\u0159ehled uv\u00e1d\u00ed materi\u00e1ly nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 p\u0159i tlakov\u00e9m lit\u00ed v automobilov\u00e9m pr\u016fmyslu, jejich hlavn\u00ed vlastnosti a pou\u017eit\u00ed.<\/p>\n

<\/p>\n

\"obr\u00e1b\u011bn\u00ed<\/figure>\n

<\/p>\n

\n\n\n\n\n\n\n\n\n
Materi\u00e1l<\/strong><\/td>\nB\u011b\u017en\u00e9 slitiny<\/strong><\/td>\nKl\u00ed\u010dov\u00e9 vlastnosti \/ hodnoty<\/strong><\/td>\nTypick\u00e9 aplikace<\/strong><\/td>\n<\/tr>\n
Slitiny hlin\u00edku<\/strong><\/td>\nA380, A383, A360, ADC12<\/td>\nHustota: ~2,7 g\/cm\u00b3 - Vysok\u00fd pom\u011br pevnosti k hmotnosti - Vynikaj\u00edc\u00ed odolnost proti korozi a vysok\u00fdm teplot\u00e1m - Bod t\u00e1n\u00ed ~660 \u00b0C<\/td>\nBloky motor\u016f, sk\u0159\u00edn\u011b p\u0159evodovek, kryty bateri\u00ed pro elektromobily<\/td>\n<\/tr>\n
Slitiny ho\u0159\u010d\u00edku<\/strong><\/td>\nAZ91D, AM60, AM50<\/td>\nHustota: ~1,8 g\/cm\u00b3 - 33% leh\u010d\u00ed ne\u017e hlin\u00edk - Dobr\u00e1 tlumic\u00ed schopnost - Bod t\u00e1n\u00ed ~650 \u00b0C<\/td>\nVolanty, r\u00e1my sedadel a vnit\u0159n\u00ed podp\u011bry<\/td>\n<\/tr>\n
Slitiny zinku<\/strong><\/td>\nZamak 3, Zamak 5, ZA-8<\/td>\nHustota: ~6,6 g\/cm\u00b3 - Vysok\u00e1 pevnost a p\u0159esnost detail\u016f - N\u00edzk\u00fd bod t\u00e1n\u00ed ~420 \u00b0C<\/td>\nKliky dve\u0159\u00ed, dr\u017e\u00e1ky, z\u00e1mky, ozdobn\u00e9 d\u00edly<\/td>\n<\/tr>\n
Slitiny m\u011bdi<\/strong><\/td>\nC18200, C95400<\/td>\nHustota: ~8,9 g\/cm\u00b3 - Vynikaj\u00edc\u00ed elektrick\u00e1 a tepeln\u00e1 vodivost - Vynikaj\u00edc\u00ed odolnost proti opot\u0159eben\u00ed<\/td>\nElektrick\u00e9 konektory, chladi\u010de, p\u0159\u00edpojnice pro elektromobily<\/td>\n<\/tr>\n
Slitiny oceli<\/strong><\/td>\nAISI 4140, AISI 4340<\/td>\nHustota: ~7,8 g\/cm\u00b3 - Vysok\u00e1 pevnost v tahu (>900 MPa) - V\u00fdjime\u010dn\u00e1 tuhost a odolnost proti \u00fanav\u011b<\/td>\nBezpe\u010dnostn\u00ed dr\u017e\u00e1ky, hnac\u00ed \u00fastroj\u00ed, v\u00fdztu\u017en\u00e9 d\u00edly<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

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\u00a0Aplikace tlakov\u00e9ho lit\u00ed pro automobilov\u00fd pr\u016fmysl<\/strong><\/h2>\n

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Schopnost lisov\u00e1n\u00ed, zejm\u00e9na v automobilov\u00e9m pr\u016fmyslu, je nezbytn\u00e1 t\u00e9m\u011b\u0159 ve v\u0161ech procesech v\u00fdroby vozidla, aby bylo pevn\u00e9, p\u0159esn\u00e9 a lehk\u00e9. Typick\u00fdmi sou\u010d\u00e1stmi automobilov\u00e9ho pr\u016fmyslu odl\u00e9van\u00fdmi pod tlakem jsou:<\/p>\n

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